1 files changed, 31 insertions, 0 deletions
diff --git a/z80irq.h b/z80irq.h
new file mode 100644
index 0000000..9e2c1dc
--- /dev/null
+++ b/z80irq.h
@@ -0,0 +1,31 @@
+#ifndef Z80IRQ_H
+#define Z80IRQ_H
+
+#include "compiler.h"
+#include "z80.h"
+
+typedef int (*irq_func)(unsigned int prio, struct z80_irq *irq);
+
+struct z80_irq {
+    irq_func intack;
+    irq_func eoi;
+    void *pvt;			/* Available for user */
+    int vector;			/* Available for user if intack defined */
+    unsigned int prio;		/* Available for user after register_irq */
+};
+
+#define MAX_IRQ 32
+
+extern volatile unsigned int irq_pending;
+static inline bool poll_irq(void)
+{
+    return unlikely(irq_pending != 0);
+}
+
+void z80_register_irq(struct z80_irq *irq);
+int z80_intack(void);
+void z80_eoi(void);
+bool z80_interrupt(unsigned int prio);
+bool z80_clear_interrupt(unsigned int prio);
+
+#endif /* Z80IRQ_H */